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16890711 = 331717761
BaseRepresentation
bin100000001101…
…1101101010111
31011210010200220
41000123231113
513311000321
61402005423
7263366025
oct100335527
934703626
1016890711
119597272
1257a6873
133665106
142359715
1517399c6
hex101bb57

16890711 has 8 divisors (see below), whose sum is σ = 22593264. Its totient is φ = 11224320.

The previous prime is 16890659. The next prime is 16890737. The reversal of 16890711 is 11709861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16890711 - 214 = 16874327 is a prime.

It is a super-2 number, since 2×168907112 = 570592236171042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16890011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7930 + ... + 9831.

It is an arithmetic number, because the mean of its divisors is an integer number (2824158).

Almost surely, 216890711 is an apocalyptic number.

16890711 is a deficient number, since it is larger than the sum of its proper divisors (5702553).

16890711 is a wasteful number, since it uses less digits than its factorization.

16890711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18081.

The product of its (nonzero) digits is 3024, while the sum is 33.

The square root of 16890711 is about 4109.8310184240. The cubic root of 16890711 is about 256.5759685910.

The spelling of 16890711 in words is "sixteen million, eight hundred ninety thousand, seven hundred eleven".

Divisors: 1 3 317 951 17761 53283 5630237 16890711